title: 1-(4-Chloro-phen-yl)-2-(1,3-diazepan-2-yl-idene)ethanone.
abstract: In the title compound, C13H15ClN2O, there are two crystallographically independent but conformationally similar (E)-mol-ecules in the asymmetric unit [dihedral angles between the phenyl ring and a common planar fragment of the 1,3-diazepane moiety = 47.34 (16) and 48.00 (16)°]. The seven-membered ring system adopts a chair conformation in both molecules. In the crystal, N-H⋯O hydrogen bonds lead to chains extending along the b-axis direction.
authors.affiliation: College of Chemistry and Chemical Engineering, Jiang Xi Normal University, Nanchang, Jiang Xi 330022, People's Republic of China.
authors.forename: Xiao-Wei
authors.initials: XW
authors.lastname: Zhang
authors.forename: Jian-Hui
authors.initials: JH
authors.lastname: Xia
authors.forename: Zhao-Hui
authors.initials: ZH
authors.lastname: Xu
authors.forename: Li-Ben
authors.initials: LB
authors.lastname: Wang
authors.forename: Chu-Yi
authors.initials: CY
authors.lastname: Yu